Mortality presses us to do

If we were immortal, we would not question ourselves so much. Less would be the question of, "Am I really happy or not?" because being content with just being happy would be enough, and not include concepts such as, "What will I miss?" and "Where will I be ten years from now?" Even with one, though, who has an infinite future, the questions, "What did I miss?" and, "What am I missing?" are still possibilities. I think they are not so extreme as reflecting on one's mortality. So when one is mortal, much anxiety and unrest can be achieved in a state of complete happiness. One can be content and happy and still contemplating an end feel discontent. This drives us to improve. This moves us. This lends us, in fact, to our desire to do more, for if we were immortal what would be the motivation? Why would we need to better ourselves? What would we try to achieve? Then, you see, we could always do it later, and later, and later until it becomes clear that it would just be better not to do things at all. Perhaps then it is the end of our lives that gives our lives meaning more than the beginning of it.